Denitrification is part of the nitrogen cycle
Answer: B: the reaction of gasoline combustion in the engine
Explanation:
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<span>Given mass: 3.810 g of h2o and 13.96 g of co2.
Mass of CO2 : 13.96 g
moles of CO2 : 0.317 moles / 44.0098
moles of C : 0.317 moles
Mass of water = 3.81 g
moles of water = 0.212 moles / 18.015
moles of H = 0.423 moles X2
Hence the molar ratio C : H is 0.317 : 0.423
= 1.000 : 1.334
Multiplying by 3 on both ratios we get: 3.000 : 4.003
Therefore the empirical formula is C3H4</span>
The correct option is A.
In the convection cell, cold air sinks at the poles because of their high pressure. As the air moves away from the poles along the earth surface, it begins to get warm and its pressure reduces. Convection cells are circular pattern of wind which are caused by the rising and sinking of wind.
